LIFE magazine has recently opened their archives and has made millions of photos--many never published--available to the public through
Google.
(link:
http://images.google.com/hosted/life )
I haven't done a full search for Marilu in the LIFE archive yet, but I came across these while searching for something else...
And from
Celebrity Sleuth Vol. 2, #3...
Mod Edit-removed dead image(s)